The Texas Department of Safety has arrested a man in connection with a “credible threat toward state legislators” attending Saturday's protest.

"No Kings Day" is a nationwide day of peaceful protest organized to coincide with a military parade in Washington, D.C., marking the 250th anniversary of the U.S. Army. According to CBS News, the parade and related festivities are expected to cost between $25 million and $45 million.

Millions of people turned out for "No Kings" protests nationwide on Saturday that were largely peaceful though there were some arrests and police had to disperse unruly crowds, including in Georgia and Los Angeles.

Dozens of No Kings protests are scheduled for June 14 in Texas, including in Austin, Houston and San Antonio. Arlington: 10 a.m. to noon at Arlington Sub Courthouse, 700 E. Abram St.

The "No Kings" protests are set to take place to counter what organizers say are Trump’s plans to feed his ego on his 79th birthday and Flag Day. "No Kings" will follow several days of nationwide protests against federal immigration raids including in Los Angeles, where Trump's deployment of the National Guard further agitated his opponents.

Follow live updates as the military parade in Washington, D.C., kicks off on Trump's birthday. 'No Kings' protests by opponents are planned across the country today.

The Houston demonstration is one of several planned in the region throughout the day and is expected to draw thousands of protesters.

Tens of thousands of Americans joined "No Kings" protests across the United States against the Trump administration.